DE19910962A1 - Plastic tub internal detector responds to pH changes in yoghurt tub and visible through transparent inspection window - Google Patents

Plastic tub internal detector responds to pH changes in yoghurt tub and visible through transparent inspection window

Info

Publication number
DE19910962A1
DE19910962A1 DE1999110962 DE19910962A DE19910962A1 DE 19910962 A1 DE19910962 A1 DE 19910962A1 DE 1999110962 DE1999110962 DE 1999110962 DE 19910962 A DE19910962 A DE 19910962A DE 19910962 A1 DE19910962 A1 DE 19910962A1
Authority
DE
Germany
Prior art keywords
tub
indicator
yoghurt
visible
changes
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
DE1999110962
Other languages
German (de)
Inventor
Joachim Barzik
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to DE1999110962 priority Critical patent/DE19910962A1/en
Publication of DE19910962A1 publication Critical patent/DE19910962A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D79/00—Kinds or details of packages, not otherwise provided for
    • B65D79/02—Arrangements or devices for indicating incorrect storage or transport
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/02—Food

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
  • Investigating Or Analysing Materials By The Use Of Chemical Reactions (AREA)

Abstract

Plastic tub internal detector responds to pH changes in yoghurt tub and visible through transparent inspection window. A sealed tub contains a food e.g. yoghurt (6) which has a limited shelf life, and the actual condition of which cannot be checked without exposing the food to ambient air and infection. The tub has a transparent window to pH indicator strip (2) which responds to product degradation arising from impurity or exposure to air. The pH indicator (2) has a printed color reference (1), pH-change responsive zone (2), a protection chamber (3), a micro-fibre protective overlay (4), and an air circulation passage (5).

Description

Herkömmliche Lebensmittelverpackungen, z. B. Joghurtbecher, lassen äußerlich den Inhaltszustand nicht klar erkennen. Der Mindesthaltbarkeits­ aufdruck ist eine grobe Orientierung. Erst nach Verpackungsöffnung ist eine Inhaltsuntersuchung möglich. Ein homogener Inhalt wird dabei kontaminiert.Conventional food packaging, e.g. B. yogurt cup externally not clearly recognize the content state. The best before date imprint is a rough guide. Only after opening the packaging is one Content examination possible. A homogeneous content is contaminated.

Problemproblem

Bei unauffälliger Verpackungsbeschädigung oder unsachgemäßer Lagerung verdirbt der Inhalt unbemerkt. Ohne Öffnung jedes einzelnen Produktes ist eine genaue Überwachung des Kontaminierungsgrades nicht möglich.In the event of inconspicuous packaging damage or improper storage the content spoils unnoticed. Without opening every single product accurate monitoring of the degree of contamination is not possible.

Lösungsolution

Ein pH-Zustandsanzeiger aus empfindlichem Spezialindikatorpapier in der Verpackung, transparent von außen Ablesbar, reagiert beim Verschließen der Packung auf die innere Atmosphäre und zeigt den derzeit optimalen pH-Wert farbig an. Ein übereinstimmender Coloraufdruck erleichtert die Kontrolle. Eine steigende Kontaminierung des Inhalts bei Öffnung oder Verfall verändert den pH-Wert. Der enggespreitzte Indikator zeigt dieses durch Farbveränderung sichtlich an. Das Spezialpapier kommt nicht mit dem Inhalt in Berührung. Es wird durch eine enggewebte Mikrofaser abgeschirmt die luft-, aber nicht flüssigkeitsdurchlässig ist.A pH status indicator made of sensitive special indicator paper in the Packaging, transparent from the outside, reacts when closing the Pack on the inner atmosphere and shows the currently optimal pH colored on. A matching color print facilitates control. An increasing contamination of the content changes when opening or decaying the pH. The narrowly spread indicator shows this through Color change visible. The special paper does not come with the content in touch. It is shielded by a tightly woven microfiber is permeable to air but not liquid.

BesonderheitPeculiarity

Der Inhaltsindikatoranzeiger ist extrem kostengünstig und vielseitig einsetzbar.The content indicator indicator is extremely inexpensive and versatile applicable.

Von außen sofort klar erkennbar der Kontaminierungsgrad des Verpackungsinhaltes.The degree of contamination of the Package contents.

Claims (1)

Art, Aufbau und Materialzusammensetzung des Überwachungsindikator's ergeben ein äußerst effizientes und preiswertes Kontrollsystem nicht nur bei Lebensmittelverpackungen.
Diese Kombination ermöglicht eine schnelle und lückenlose Überwachung jedes einzelnen Produktes ohne Packungsöffnung, vom Hersteller bis zum Verbraucher. Der Anbieter und auch der Konsument erkennen klar auf einen Blick ob-, und in wieweit der Inhalt noch genießbar ist.
Der Inhaltsindikatoranzeiger, von außen ablesbar, beinhaltet viele weitere Anwendungsmöglichkeiten die sich nür von diesem Grundaufbau ableiten lassen.
Ich beantrage den Patentschutz für das gesamte Grundsystem, unabhängig davon, aus welchen Materialien der Indikator und die Indikatorabschirmung bestehen.The type, structure and material composition of the monitoring indicator result in an extremely efficient and inexpensive control system not only for food packaging.
This combination enables fast and complete monitoring of each individual product without a package opening, from the manufacturer to the consumer. The provider and the consumer can clearly see at a glance whether and to what extent the content can still be enjoyed.
The content indicator indicator, readable from the outside, contains many other possible applications that can only be derived from this basic structure.
I apply for patent protection for the entire basic system, regardless of the materials from which the indicator and the indicator shield are made.
DE1999110962 1999-03-12 1999-03-12 Plastic tub internal detector responds to pH changes in yoghurt tub and visible through transparent inspection window Withdrawn DE19910962A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE1999110962 DE19910962A1 (en) 1999-03-12 1999-03-12 Plastic tub internal detector responds to pH changes in yoghurt tub and visible through transparent inspection window

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1999110962 DE19910962A1 (en) 1999-03-12 1999-03-12 Plastic tub internal detector responds to pH changes in yoghurt tub and visible through transparent inspection window

Publications (1)

Publication Number Publication Date
DE19910962A1 true DE19910962A1 (en) 2000-09-14

Family

ID=7900669

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1999110962 Withdrawn DE19910962A1 (en) 1999-03-12 1999-03-12 Plastic tub internal detector responds to pH changes in yoghurt tub and visible through transparent inspection window

Country Status (1)

Country Link
DE (1) DE19910962A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002094672A1 (en) * 2001-05-22 2002-11-28 David Yuile Integrity indicator means provides visible change
WO2021058335A1 (en) * 2019-09-26 2021-04-01 Mimica Lab Ltd Food spoilage monitoring device

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3067015A (en) * 1960-01-29 1962-12-04 Ray F Lawdermilt Spoilage indicator for food containers
US4003709A (en) * 1975-10-02 1977-01-18 Visual Spoilage Indicator Company Visual spoilage indicator for food containers
WO1998020337A1 (en) * 1996-11-05 1998-05-14 Biodetect Corporation Methods and devices for detecting spoilage in food products

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3067015A (en) * 1960-01-29 1962-12-04 Ray F Lawdermilt Spoilage indicator for food containers
US4003709A (en) * 1975-10-02 1977-01-18 Visual Spoilage Indicator Company Visual spoilage indicator for food containers
WO1998020337A1 (en) * 1996-11-05 1998-05-14 Biodetect Corporation Methods and devices for detecting spoilage in food products

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002094672A1 (en) * 2001-05-22 2002-11-28 David Yuile Integrity indicator means provides visible change
WO2021058335A1 (en) * 2019-09-26 2021-04-01 Mimica Lab Ltd Food spoilage monitoring device
CN114630795A (en) * 2019-09-26 2022-06-14 米米卡实验室有限公司 Food spoilage monitoring device

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Legal Events

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8122 Nonbinding interest in granting licenses declared
8139 Disposal/non-payment of the annual fee